Cavity Ring-Down Spectroscopy for Molecular Trace Gas Detection Using A Pulsed DFB QCL Emitting at 6.8 µm
A trace gas sensor based on pulsed cavity ring-down spectroscopy (CRDS) was developed for measurement of the ν4 fundamental vibrational band of ammonia (NH<sub>3</sub>) centered at 1468.898 cm<sup>−1</sup>. A pulsed distributed feedback quantum cascade laser (DFB-QCL) operating at 6.8 µm (1470.58 cm...
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| Principais autores: | , , , , , , |
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| Format: | Artigo |
| Sprog: | Inglês |
| Udgivet: |
MDPI AG
2020-09-01
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| Serier: | Photonics |
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| Online adgang: | https://www.mdpi.com/2304-6732/7/3/74 |
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